Operate Mode - SPE SEGUNDA SERIE Manual De Usuario

18.21 OPERATE Mode.

In this working mode, the linear amplifier power circuitry is supplied and enabled.
It can be activated, from the Main Display Page, either by pressing the [OPERATE]
key located of the front panel or by previously setting, from the SETUP OPTIONS
menu, the START Operate option.
There are two possible OPERATE Mode display pages:
• displaying of PA OUT (output power) + I PA (power-supply source current)
• displaying of PW REV (reverse power) + V PA (power-supply source voltage)
• NB – The PW REV thus displayed is the reflected power before the low pass
filter, including harmonic power reflected by the filter. It is NOT the reflected
power as measured at the antenna output.
The [DISPLAY] key allows to switch back and forth these two display pages and to
make a proper context change.
When entering the OPERATE Mode, the default display page is the one left either the
last time before the return to the Main Display Page or before a "soft shutdown" using
the [OFF] key.
In any way it is allowed to return to the Main Display Page pressing the [OPERATE] key
again.
Note: while in OPERATE Mode, the SWR readout inside the Status Bar is substituted with the
power amplifier gain value (PA GAIN) expressed in dB and according to the following
formula: PA GAIN(dB) = 10*log(PA_OUT/PW_ IN).
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